CALDAV - Search/Subscribe Requires Restart
Add CalDAV search & subscribe feature to Lightning
TB Change From and Fcc on Compose Extension Requires Restart
You can now temporarily change the from and fcc on...
Personasizer allows you to expose more of your persona's header image. Useful for personas that have text or an important part of their content cut off by the browser's navigation elements.
Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.
Insert Link from Local File Requires Restart
Inserts links from local files via drag and drop on the composition window.
Reject Button 1.0 Requires Restart
Annoyed by receiving mails with missing or wrong subjects or meaningless message bodies? Simply reject them with the Reject Button Add-On and enforce proper e-mail etiquette at the cost of just a few friendships.
Event-to-task conversion activator Requires Restart
Activates the Event-Task conversion ability...
MozLab Requires Restart
Remote shell and test-driven development tool for Mozilla developers
xSearchbarT2 Requires Restart
Somewhere between Thunderbird 1.5 and Thunderbird 2 the message search bar disappeared. This extension restores the search bar. Thunderbird 2 and newer only.
AboutConfig Requires Restart
Message Notes Requires Restart
Add Notes to messages. Notes are stored in a plaintext file, typically in your profile. The plaintext notes file can be stored elsewhere to enable sharing of notes across a...
Automatically marks all messages in the [Gmail] folder and all subfolders as read.
Grammar Checker Requires Restart
Checks grammar using LanguageTool.
FolderCheck Requires Restart
Allows you to easily tell Thunderbird to check multiple folders for messages
Fix Tb Titlebar Extension Requires Restart
You can now modify the Titlebar of TB's main...
Tag the Bird Requires Restart
Tag the Bird gives the power of tagging to Thunderbird.
GNOME keyring password integration Requires Restart
Extension that allows Firefox and Thunderbird to store passwords in Keyring, Gnome's default password store.
Highlight External Addresses Requires Restart
This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.